Small website selling ONLY 1 product only

I want a build a website which sells only ONE PRODUCT. I will be suggesting you a website which needs to be copied. I will also give all the content to write and some shutteshock templates to refer. The website is for New Zealand market. I need a modern website. The website should be compatible with [login to view URL] payment gateway. I need a simple nice looking, very very user friendly website. No shopping cart. but a small order management system, with automated emailing post sales. The website will be 3-4 pages informing about the product. I want the users to enter shipping address, name etc on the BUY NOW page and checkout. There will be one video embedded on front page. I also want the website to connect with facebook and users can login using facebook account. Small and very easy project. Ethical white hat SEO work needed after completion of website. Will give 20 keywords. WEB Traffic needed only from NEW ZEALAND. NO OTHER COUNTRY Ideas, suggestions welcome.